$OpenBSD: patch-openbsd__sysvar_c,v 1.2 2015/01/22 12:25:51 naddy Exp $
--- openbsd/_sysvar.c.orig	Tue Dec 21 07:32:04 2004
+++ openbsd/_sysvar.c	Thu Jan 22 13:22:43 2015
@@ -29,6 +29,7 @@
 #include <sys/param.h>
 #include <sys/socket.h>
 #include <sys/mbuf.h>
+#include <netinet/in.h>
 #include <net/if.h>
 #include <net/pfvar.h>
 #include <net/if_pflog.h>
@@ -85,5 +86,4 @@ void init_sysvar(void){
     /* enc interface packet format flags */
     PyModule_AddIntConstant(module, "ENC_CONF",                 (long) M_CONF);       
     PyModule_AddIntConstant(module, "ENC_AUTH",                 (long) M_AUTH);       
-    PyModule_AddIntConstant(module, "ENC_AUTH_AH",              (long) M_AUTH_AH);       
 }
